Inconsistent Pedal Feel/ Clutch Master Cylinder Failure

Indicator:

Inconsistent pedal feel/Clutch Master Cylinder failure

Cause:

Contaminated or old clutch fluid

Effect:

1. Master cylinder leaking
2. Damage to the main internal seals (causing a bypass)
3. Moisture in the clutch fluid

Action:

1. Replace clutch master cylinder – if necessary
2. Replace the hydraulic fluid (only use manufactures specified fluid)
3. Flush the clutch hydraulic system completely to remove any residual contamination.

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Trouble Shooting

Clutch Cover
- Engagement & disengagement(9)
- Loss of Drive(1)
- No Pedal (pressure)(1)
- Noise & Vibration(1)
- shudder (judder)(2)
- slip(6)
Clutch Disc
- Difficult Disengagement(10)
- Loss of Drive(5)
- Noise & Vibration(3)
- Other(2)
- Shudder (judder)(3)
- Slipping(6)
Clutch Master Cylinder(1)
Clutch Slave Cylinder(1)
Clutch Spigot Bearing, bush (pilot bearing)
- Difficult Engagement& Disengagement(1)
CSC (concentric slave cylinder)
- CSC Leaking(1)
- Loss of Fluid(5)
- Other(1)
Flywheel
- Other(1)
- Slipping(2)
- Vibration(1)
Thrust Bearing
- Noise & Vibration(6)
Vehicle Diagnostics(6)